US9856190B2 - 1, 3-butadiene separating material, and separation method using said separating material - Google Patents
1, 3-butadiene separating material, and separation method using said separating material Download PDFInfo
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- US9856190B2 US9856190B2 US14/906,919 US201414906919A US9856190B2 US 9856190 B2 US9856190 B2 US 9856190B2 US 201414906919 A US201414906919 A US 201414906919A US 9856190 B2 US9856190 B2 US 9856190B2
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- United States
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- carbon atoms
- butadiene
- dicarboxylic acid
- atom
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- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 title claims abstract description 304
- 239000000463 material Substances 0.000 title claims abstract description 82
- 238000000926 separation method Methods 0.000 title claims abstract description 62
- -1 dicarboxylic acid compound Chemical class 0.000 claims abstract description 132
- 150000004696 coordination complex Chemical class 0.000 claims abstract description 71
- 229910052751 metal Inorganic materials 0.000 claims abstract description 37
- 239000002184 metal Substances 0.000 claims abstract description 37
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 24
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 24
- 150000001991 dicarboxylic acids Chemical class 0.000 claims abstract description 15
- 229910052790 beryllium Inorganic materials 0.000 claims abstract description 11
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 125000004432 carbon atom Chemical group C* 0.000 claims description 140
- 239000007789 gas Substances 0.000 claims description 85
- 238000001179 sorption measurement Methods 0.000 claims description 65
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 37
- 125000005843 halogen group Chemical group 0.000 claims description 34
- NBDAHKQJXVLAID-UHFFFAOYSA-N 5-nitroisophthalic acid Chemical compound OC(=O)C1=CC(C(O)=O)=CC([N+]([O-])=O)=C1 NBDAHKQJXVLAID-UHFFFAOYSA-N 0.000 claims description 31
- 125000000217 alkyl group Chemical group 0.000 claims description 29
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 24
- 239000012528 membrane Substances 0.000 claims description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 20
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 20
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 16
- 125000000547 substituted alkyl group Chemical group 0.000 claims description 16
- 229910052799 carbon Inorganic materials 0.000 claims description 15
- 229910052757 nitrogen Chemical group 0.000 claims description 15
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 15
- 239000004215 Carbon black (E152) Substances 0.000 claims description 14
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 14
- 229910021645 metal ion Inorganic materials 0.000 claims description 14
- BJLUCDZIWWSFIB-UHFFFAOYSA-N 5-tert-butylbenzene-1,3-dicarboxylic acid Chemical compound CC(C)(C)C1=CC(C(O)=O)=CC(C(O)=O)=C1 BJLUCDZIWWSFIB-UHFFFAOYSA-N 0.000 claims description 13
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 claims description 12
- 125000003545 alkoxy group Chemical group 0.000 claims description 12
- QMKYBPDZANOJGF-UHFFFAOYSA-N benzene-1,3,5-tricarboxylic acid Chemical compound OC(=O)C1=CC(C(O)=O)=CC(C(O)=O)=C1 QMKYBPDZANOJGF-UHFFFAOYSA-N 0.000 claims description 12
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 claims description 12
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims description 12
- 150000003839 salts Chemical class 0.000 claims description 12
- 239000011701 zinc Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- IAQRGUVFOMOMEM-ONEGZZNKSA-N trans-but-2-ene Chemical compound C\C=C\C IAQRGUVFOMOMEM-ONEGZZNKSA-N 0.000 claims description 11
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 10
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 10
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 10
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 10
- 125000004423 acyloxy group Chemical group 0.000 claims description 10
- 125000004453 alkoxycarbonyl group Chemical group 0.000 claims description 10
- 229910052788 barium Inorganic materials 0.000 claims description 10
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052793 cadmium Inorganic materials 0.000 claims description 10
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052791 calcium Inorganic materials 0.000 claims description 10
- 239000011575 calcium Substances 0.000 claims description 10
- 229910052804 chromium Inorganic materials 0.000 claims description 10
- 239000011651 chromium Substances 0.000 claims description 10
- 229910017052 cobalt Inorganic materials 0.000 claims description 10
- 239000010941 cobalt Substances 0.000 claims description 10
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 125000004663 dialkyl amino group Chemical group 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 229910052749 magnesium Inorganic materials 0.000 claims description 10
- 239000011777 magnesium Substances 0.000 claims description 10
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 10
- 229910052759 nickel Inorganic materials 0.000 claims description 10
- 229910052763 palladium Inorganic materials 0.000 claims description 10
- 229910052697 platinum Inorganic materials 0.000 claims description 10
- 229910052703 rhodium Inorganic materials 0.000 claims description 10
- 239000010948 rhodium Substances 0.000 claims description 10
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 10
- 229910052707 ruthenium Inorganic materials 0.000 claims description 10
- YXTFRJVQOWZDPP-UHFFFAOYSA-M sodium;3,5-dicarboxybenzenesulfonate Chemical compound [Na+].OC(=O)C1=CC(C(O)=O)=CC(S([O-])(=O)=O)=C1 YXTFRJVQOWZDPP-UHFFFAOYSA-M 0.000 claims description 10
- 229910052712 strontium Inorganic materials 0.000 claims description 10
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 10
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 claims description 10
- 239000010936 titanium Substances 0.000 claims description 10
- 229910052719 titanium Inorganic materials 0.000 claims description 10
- 229910052720 vanadium Inorganic materials 0.000 claims description 10
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 claims description 10
- 229910052725 zinc Inorganic materials 0.000 claims description 10
- 125000002947 alkylene group Chemical group 0.000 claims description 9
- 125000003277 amino group Chemical group 0.000 claims description 9
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 9
- DEJILVUPOQKKFM-UHFFFAOYSA-L dilithium;5-sulfobenzene-1,3-dicarboxylate Chemical compound [Li+].[Li+].OS(=O)(=O)C1=CC(C([O-])=O)=CC(C([O-])=O)=C1 DEJILVUPOQKKFM-UHFFFAOYSA-L 0.000 claims description 9
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 9
- 125000004442 acylamino group Chemical group 0.000 claims description 8
- 125000003342 alkenyl group Chemical group 0.000 claims description 8
- MGFJDEHFNMWYBD-OWOJBTEDSA-N 4-[(e)-2-pyridin-4-ylethenyl]pyridine Chemical group C=1C=NC=CC=1/C=C/C1=CC=NC=C1 MGFJDEHFNMWYBD-OWOJBTEDSA-N 0.000 claims description 7
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 claims description 7
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 7
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 claims description 7
- PMZBHPUNQNKBOA-UHFFFAOYSA-N 5-methylbenzene-1,3-dicarboxylic acid Chemical compound CC1=CC(C(O)=O)=CC(C(O)=O)=C1 PMZBHPUNQNKBOA-UHFFFAOYSA-N 0.000 claims description 6
- IAQRGUVFOMOMEM-ARJAWSKDSA-N cis-but-2-ene Chemical compound C\C=C/C IAQRGUVFOMOMEM-ARJAWSKDSA-N 0.000 claims description 6
- 150000002500 ions Chemical class 0.000 claims description 6
- 239000001282 iso-butane Substances 0.000 claims description 6
- UHBAPGWWRFVTFS-UHFFFAOYSA-N 4,4'-dipyridyl disulfide Chemical compound C=1C=NC=CC=1SSC1=CC=NC=C1 UHBAPGWWRFVTFS-UHFFFAOYSA-N 0.000 claims description 5
- DQRKTVIJNCVZAX-UHFFFAOYSA-N 4-(2-pyridin-4-ylethyl)pyridine Chemical compound C=1C=NC=CC=1CCC1=CC=NC=C1 DQRKTVIJNCVZAX-UHFFFAOYSA-N 0.000 claims description 5
- XUPMSLUFFIXCDA-UHFFFAOYSA-N dipyridin-4-yldiazene Chemical compound C1=NC=CC(N=NC=2C=CN=CC=2)=C1 XUPMSLUFFIXCDA-UHFFFAOYSA-N 0.000 claims description 5
- 230000008929 regeneration Effects 0.000 claims description 5
- 238000011069 regeneration method Methods 0.000 claims description 5
- POSMIIJADZKUPL-UHFFFAOYSA-N 5-methoxybenzene-1,3-dicarboxylic acid Chemical compound COC1=CC(C(O)=O)=CC(C(O)=O)=C1 POSMIIJADZKUPL-UHFFFAOYSA-N 0.000 claims description 4
- 229910001429 cobalt ion Inorganic materials 0.000 claims description 4
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 claims description 4
- 229910001453 nickel ion Inorganic materials 0.000 claims description 4
- 230000001376 precipitating effect Effects 0.000 claims description 4
- 238000001238 wet grinding Methods 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 abstract description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 22
- 230000000052 comparative effect Effects 0.000 description 14
- 239000005977 Ethylene Substances 0.000 description 12
- 0 [1*]C1=C(C(=O)O)C([3*])=C(C(=O)O)C([2*])=C1[Y] Chemical compound [1*]C1=C(C(=O)O)C([3*])=C(C(=O)O)C([2*])=C1[Y] 0.000 description 12
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000011787 zinc oxide Substances 0.000 description 11
- 239000011148 porous material Substances 0.000 description 10
- 239000000047 product Substances 0.000 description 10
- 239000002994 raw material Substances 0.000 description 10
- 230000007423 decrease Effects 0.000 description 8
- 238000003795 desorption Methods 0.000 description 8
- 239000002904 solvent Substances 0.000 description 8
- 239000002156 adsorbate Substances 0.000 description 7
- 239000013078 crystal Substances 0.000 description 7
- 239000012046 mixed solvent Substances 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 6
- 235000013844 butane Nutrition 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 239000003960 organic solvent Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 125000001424 substituent group Chemical group 0.000 description 6
- 238000002159 adsorption--desorption isotherm Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 229910021536 Zeolite Inorganic materials 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 239000003463 adsorbent Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 4
- 230000003993 interaction Effects 0.000 description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 4
- 239000010457 zeolite Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 229940126062 Compound A Drugs 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 125000003668 acetyloxy group Chemical group [H]C([H])([H])C(=O)O[*] 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 125000001231 benzoyloxy group Chemical group C(C1=CC=CC=C1)(=O)O* 0.000 description 3
- 239000001273 butane Substances 0.000 description 3
- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 description 3
- MPFLRYZEEAQMLQ-UHFFFAOYSA-N dinicotinic acid Chemical compound OC(=O)C1=CN=CC(C(O)=O)=C1 MPFLRYZEEAQMLQ-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 3
- 125000003754 ethoxycarbonyl group Chemical group C(=O)(OCC)* 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 125000002510 isobutoxy group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])O* 0.000 description 3
- 125000003253 isopropoxy group Chemical group [H]C([H])([H])C([H])(O*)C([H])([H])[H] 0.000 description 3
- 125000001160 methoxycarbonyl group Chemical group [H]C([H])([H])OC(*)=O 0.000 description 3
- 125000000250 methylamino group Chemical group [H]N(*)C([H])([H])[H] 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 125000006606 n-butoxy group Chemical group 0.000 description 3
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 3
- 125000003506 n-propoxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000002798 polar solvent Substances 0.000 description 3
- 238000000634 powder X-ray diffraction Methods 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 125000004213 tert-butoxy group Chemical group [H]C([H])([H])C(O*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 3
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 3
- MWVTWFVJZLCBMC-UHFFFAOYSA-N 4,4'-bipyridine Chemical group C1=NC=CC(C=2C=CN=CC=2)=C1 MWVTWFVJZLCBMC-UHFFFAOYSA-N 0.000 description 2
- CARJPEPCULYFFP-UHFFFAOYSA-N 5-Sulfo-1,3-benzenedicarboxylic acid Chemical compound OC(=O)C1=CC(C(O)=O)=CC(S(O)(=O)=O)=C1 CARJPEPCULYFFP-UHFFFAOYSA-N 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- ROFVEXUMMXZLPA-UHFFFAOYSA-N Bipyridyl Chemical group N1=CC=CC=C1C1=CC=CC=N1 ROFVEXUMMXZLPA-UHFFFAOYSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 229910052794 bromium Inorganic materials 0.000 description 2
- 150000001244 carboxylic acid anhydrides Chemical group 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000009918 complex formation Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 2
- 150000002531 isophthalic acids Chemical class 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 239000013110 organic ligand Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
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Definitions
- the present invention relates to a 1,3-butadiene separating material containing a specific metal complex, and a method for separating 1,3-butadiene from a mixed gas using that separating material.
- 1,3-butadiene is an example of a hydrocarbon gas that is targeted for separation and recovery.
- 1,3-butadiene is a compound that is useful as a starting material for the production of synthetic rubber as well as an intermediate of an extremely large number of compounds.
- 1,3-butadiene is typically produced by thermal decomposition of naphtha or dehydrogenation of butene. In these production methods, 1,3-butadiene is obtained in the form of one component of a mixed gas. Thus, it is necessary to selectively separate and recover 1,3-butadiene from this mixed gas.
- Examples of main components in the mixed gas having four carbon atoms include 1,3-butadiene, isobutene, 1-butene, trans-2-butene, cis-2-butene, n-butane and isobutane. Since these compounds have the same number of carbon atoms and similar boiling points, they are difficult to separate from each other using industrial distillation methods.
- Another example of a separation method is extractive distillation. Since this method is an absorption method that uses a polar solvent, such as DMF, an extremely large amount of energy is required when recovering 1,3-butadiene from the polar solvent. Thus, an adsorption method to separate and recover 1,3-butadiene using less energy is desired.
- a polar solvent such as DMF
- Patent Document 1 Since conventional porous materials (Patent Document 1) exhibit low separation performance with respect to the target gas, multi-step separation is required, thereby leading to unavoidable increases in size of the separation apparatus.
- Porous metal complexes that induce a dynamic structural change by an external stimulus have been developed as adsorbents that provide separation performance superior to that of conventional porous materials (Non-Patent Document 1 and Non-Patent Document 2).
- a unique phenomenon has been observed in which, although gas is not adsorbed below a certain pressure, gas begins to be adsorbed once that pressure is exceeded.
- a phenomenon has been observed in which the gate-opening pressure varies depending on the type of gas.
- a metal complex [Zn(R-ip)(bpe)](wherein R represents H, Me, NO 2 or I) has been disclosed and the complex is composed of a zinc ion, various types of isophthalic acid derivatives and 1,2-di(4-pyridyl)ethylene (Patent Document 2 and Non-Patent Document 3).
- Patent Document 2 and Non-Patent Document 3 contain discussions of the adsorption and separation characteristics relating to hydrocarbons having two carbon atoms, there is no discussion regarding the adsorption and separation characteristics of hydrocarbon gases having four carbon atoms, including 1,3-butadiene.
- Patent Document 3 Attempts to change gate-opening pressure by mixing a plurality of ligands have been disclosed with respect to metal complexes consisting of a zinc ion, various types of isophthalic acid derivatives and 4,4′-bipyridyl (Patent Document 3 and Non-Patent Document 4). However, these disclosures do not discuss the 1,3-butadiene separation characteristics of metal complexes composed of bidentate organic ligands other than 4,4′-bipyridyl.
- Patent Document 1 Japanese Unexamined Patent Publication No. S51-43702
- Patent Document 2 Japanese Unexamined Patent Publication No. 2011-068631
- Patent Document 3 Japanese Unexamined Patent Publication No. 2012-031161
- Non-Patent Document 1 Kazuhiro Uemura and Susumu Kitagawa, Future Materials, Vol. 2, pp. 44-51 (2002)
- Non-Patent Document 2 Ryotaro Matsuda and Susumu Kitagawa, Petrotech, Vol. 26, pp. 97-104 (2003)
- Non-Patent Document 3 Satoshi Horike, Keisuke Kishida, Yoshihiro Watanabe, Yasutaka Inubushi, Daiki Umeyama, Masayuki Sugimoto, Tomohiro Fukushima, Munehiro Inukai and Susumu Kitagawa, Journal of American Chemical Society, Vol. 134, pp. 9852-9855 (2012)
- Non-Patent Document 4 Satoshi Horike, Yasutaka Inubushi, Takashi Hori, Tomohiro Fukushima and Susumu Kitagawa, Chemical Science, Vol. 3, pp. 116-120 (2012)
- An object of the present invention is to provide a separating material and separation method that are superior to the prior art in that they are capable of selectively separating and recovering 1,3-butadiene from a mixed gas containing 1,3-butadiene and hydrocarbons having four carbon atoms other than 1,3-butadiene.
- the inventors of the present invention have found that the aforementioned object can be achieved in the case of using a separating material containing a metal complex composed of a metal ion, a dicarboxylic acid compound (I) and a dipyridyl compound (II), wherein the dicarboxylic acid compound (I) is composed of two or more types of dicarboxylic acid compounds (I), thereby leading to completion of the present invention.
- the present invention relates to [1] to [14] indicated below.
- a 1,3-butadiene separating material that selectively adsorbs 1,3-butadiene from a mixed gas containing 1,3-butadiene and a hydrocarbon having four carbon atoms other than 1,3-butadiene, comprising a metal complex consisting of:
- X represents a carbon atom or nitrogen atom
- Y represents a hydrogen atom, optionally substituted alkyl group having 1 to 4 carbon atoms, alkenyl group having 2 to 4 carbon atoms, alkoxy group having 1 to 4 carbon atoms, formyl group, acyloxy group having 2 to 4 carbon atoms, hydroxyl group, alkoxycarbonyl group having 2 to 4 carbon atoms, nitro group, cyano group, amino group, monoalkylamino group having 1 to 4 carbon atoms, dialkylamino group having 2 to 4 carbon atoms, acylamino group having 2 to 4 carbon atoms, sulfo group, sulfonate group, carboxyl group or halogen atom in the case X represents a carbon atom or Y is not present in the case X represents a nitrogen atom
- R 1 , R 2 and R 3 respectively and independently represent a hydrogen atom, optionally substituted alkyl group having 1 to 4 carbon atom
- an ion of at least one type of metal selected from the group consisting of beryllium, magnesium, calcium, strontium, barium, titanium, vanadium, chromium, manganese, iron, ruthenium, cobalt, rhodium, nickel, palladium, platinum, copper, zinc and cadmium; and,
- R 4 , R 5 , R 6 and R 7 respectively and independently represent a hydrogen atom, alkyl group having 1 to 4 carbon atoms or a halogen atom
- Z represents —CR 8 R 9 —CR 10 R 11 —
- R 8 , R 9 , R 10 and R 11 respectively and independently represent a hydrogen atom, alkyl group having 1 to 4 carbon atoms, hydroxyl group or halogen atom
- an alkylene group having 3 to 4 carbon atoms, —CH ⁇ CH—, —C ⁇ C—, —S—S—, —N ⁇ N—, —O—CH 2 —, —NH—CH 2 — or —NHCO—);
- dicarboxylic acid compound (I) two or more different types of the dicarboxylic acid compound (I) are contained as the dicarboxylic acid compound (I).
- dicarboxylic acid compound (I) comprises two or more dicarboxylic acids selected from the group consisting of isophthalic acid, 5-methylisophthalic acid, 5-tert-butylisophthalic acid, 5-methoxyisophthalic acid, 5-nitroisophthalic acid, sodium 5-sulfoisophthalate, lithium 5-sulfoisophthalate and trimesic acid.
- dipyridyl compound (II) is at least one selected from the group consisting of 1,2-di(4-pyridiyl)ethylene, 1,2-di(4-pyridyl)ethane, 4,4′-azobispyridine and 4,4′-dipyridyl disulfide.
- a 1,3-butadiene separation method comprising: an adsorption step for contacting a separating material with a mixed gas containing 1,3-butadiene and a hydrocarbon having four carbon atoms other than 1,3-butadiene and selectively adsorbing 1,3-butadiene onto the separating material, followed by a regeneration step for desorbing the 1,3-butadiene adsorbed onto the separating material from the separating material and capturing the released 1,3-butadiene, wherein the separating material is the separating material described in any of [1] to [7].
- a separation membrane comprising a porous support and the 1,3-butadiene separating material described in any of [1] to [7] attached to the surface of the porous support.
- a separation membrane comprising a polymeric material and the 1,3-butadiene separating material described in any of [1] to [7] kneaded and dispersed in the polymeric material.
- a 1,3-butadiene separation method comprising: contacting a mixed gas containing 1,3-butadiene and a hydrocarbon having four carbon atoms other than 1,3-butadiene with a separation membrane and selectively allowing the 1,3-butadiene to pass through the separation membrane to obtain a gas having a higher 1,3-butadiene concentration than the mixed gas, wherein the separation membrane is the separation membrane described in [11] or [12].
- a method for producing the metal complex described in [1], comprising reacting a salt of at least one type of metal selected from the group consisting of beryllium, magnesium, calcium, strontium, barium, titanium, vanadium, chromium, manganese, iron, ruthenium, cobalt, rhodium, nickel, palladium, platinum, copper, zinc and cadmium, two or more types of the dicarboxylic acid compound (I), and the dipyridyl compound (II) and precipitating a metal complex, wherein wet grinding is carried out during the reaction.
- a salt of at least one type of metal selected from the group consisting of beryllium, magnesium, calcium, strontium, barium, titanium, vanadium, chromium, manganese, iron, ruthenium, cobalt, rhodium, nickel, palladium, platinum, copper, zinc and cadmium, two or more types of the dicarboxylic acid compound (I), and the dipyridyl compound
- 1,3-butadiene can be separated and recovered from a mixed gas containing 1,3-butadiene at a higher level of separation performance than that of the prior art.
- FIG. 1 is a schematic diagram showing the structure of a pseudo-diamondoid framework.
- FIG. 2 is a schematic diagram showing the three-dimensional structure of a triply interpenetrating pseudo-diamondoid framework.
- FIG. 3 is a schematic diagram of an apparatus for recovering 1,3-butadiene from a mixed gas by pressure swing adsorption.
- FIG. 4 is an adsorption isotherm of the metal complexes of Examples 1 to 3 and Comparative Example 1 with respect to 1,3-butadiene at 25° C.
- FIG. 5 is an adsorption isotherm of the metal complexes of Examples 4 and 5 and Comparative Example 1 with respect to 1,3-butadiene at 25° C.
- FIG. 6 is a time profile of the amounts of 1,3-butadiene adsorbed to the metal complexes of Examples 6 to 9 and Comparative Example 1 at 25° C.
- FIG. 7 is an adsorption-desorption isotherm of 1,3-butadiene and trans-2-butene in the metal complex of Example 2 at 25° C.
- FIG. 8 is an adsorption-desorption isotherm of 1,3-butadiene and trans-2-butene in the separating material of Comparative Example 2 in the form of zeolite at 25° C.
- the 1,3-butadiene separating material of the present invention comprises a metal complex composed of a dicarboxylic acid compound (I), a specific metal ion, and a dipyridyl compound (II) capable of bidentate coordination with the metal ion, wherein the dicarboxylic acid compound (I) comprises two or more different types of the dicarboxylic acid compound (I).
- the 1,3-butadiene separating material of the present invention can be used to selectively separate 1,3-butadiene from, for example, a mixed gas containing 1,3-butadiene and hydrocarbons having four carbon atoms other than 1,3-butadiene.
- the hydrocarbon having four carbon atoms other than 1,3-butadiene can be at least one selected from the group consisting of 1-butene, isobutene, trans-2-butene, cis-2-butene, isobutane and n-butane.
- the metal complex used in the present invention can be produced by reacting two or more types of the dicarboxylic acid compound (I), a salt of at least one type of metal selected from the group consisting of beryllium, magnesium, calcium, strontium, barium, titanium, vanadium, chromium, manganese, iron, ruthenium, cobalt, rhodium, nickel, palladium, platinum, copper, zinc and cadmium, and a dipyridyl compound (II), capable of bidentate coordination with the metal ion, for several minutes to several days in a solvent, and precipitating crystals.
- a salt of at least one type of metal selected from the group consisting of beryllium, magnesium, calcium, strontium, barium, titanium, vanadium, chromium, manganese, iron, ruthenium, cobalt, rhodium, nickel, palladium, platinum, copper, zinc and cadmium
- a dipyridyl compound (II) capable of
- the dicarboxylic acid compound (I) used in the present invention is represented by the following general formula (I):
- X represents a carbon atom or nitrogen atom
- Y represents a hydrogen atom, optionally substituted alkyl group having 1 to 4 carbon atoms, alkenyl group having 2 to 4 carbon atoms, alkoxy group having 1 to 4 carbon atoms, formyl group, acyloxy group having 2 to 4 carbon atoms, hydroxyl group, alkoxycarbonyl group having 2 to 4 carbon atoms, nitro group, cyano group, amino group, monoalkylamino group having 1 to 4 carbon atoms, dialkylamino group having 2 to 4 carbon atoms, acylamino group having 2 to 4 carbon atoms, sulfo group, sulfonate group, carboxyl group or halogen atom in the case X represents a carbon atom, or Y is not present in the case X represents a nitrogen atom
- R 1 , R 2 and R 3 respectively and independently represent a hydrogen atom, optionally substituted alkyl group having 1 to 4 carbon
- X in general formula (I) is a carbon atom or nitrogen atom. Y is not present in the case X is a nitrogen atom.
- Y is a hydrogen atom, optionally substituted alkyl group having 1 to 4 carbon atoms, alkenyl group having 2 to 4 carbon atoms, alkoxy group having 1 to 4 carbon atoms, formyl group, acyloxy group having 2 to 4 carbon atoms, hydroxyl group, alkoxycarbonyl group having 2 to 4 carbon atoms, nitro group, cyano group, amino group, monoalkylamino group having 1 to 4 carbon atoms, dialkylamino group having 2 to 4 carbon atoms, acylamino group having 2 to 4 carbon atoms, sulfo (—SO 3 H) group, sulfonate group (such as —SO 3 Na), carboxyl group or halogen atom.
- alkyl group having 1 to 4 carbon atoms alkenyl group having 2 to 4 carbon atoms, alkoxy group having 1 to 4 carbon atoms, formyl group, acyloxy group having 2 to 4 carbon atoms, hydroxyl
- alkyl groups having 1 to 4 carbon atoms include linear or branched alkyl groups, such as a methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group or tert-butyl group.
- alkyl groups examples include alkoxy groups (such as a methoxy group, ethoxy group, n-propoxy group, isopropoxy group, n-butoxy group, isobutoxy group or tert-butoxy group), amino groups, monoalkylamino groups (such as a methylamino group), dialkylamino groups (such as a dimethylamino group), formyl group, epoxy groups, acyloxy groups (such as an acetoxy group, n-propanoyloxy group, n-butanoyloxy group, pivaloyloxy group or benzoyloxy group), alkoxycarbonyl groups (such as a methoxycarbonyl group, ethoxycarbonyl group or n-butoxycarbonyl group), and carboxylic anhydride groups (such as a —CO—O—CO—R group, wherein R represents an alkyl group having 1 to 4 carbon atoms).
- alkoxy groups such as a methoxy
- alkenyl groups having 2 to 4 carbon atoms examples include a vinyl group, allyl group, 1-propenyl group and butenyl group.
- alkoxy groups having 1 to 4 carbon atoms include a methoxy group, ethoxy group, n-propoxy group, isopropoxy group, n-butoxy group, isobutoxy group and tert-butoxy group.
- acyloxy groups having 2 to 4 carbon atoms include an acetoxy group, n-propanoyloxy group, n-butanoyloxy group, pivaloyloxy group and benzoyloxy group.
- alkoxycarbonyl groups having 2 to 4 carbon atoms include a methoxycarbonyl group, ethoxycarbonyl group and n-butoxycarbonyl group.
- Examples of monoalkylamino groups having 1 to 4 carbon atoms include a methylamino group.
- dialkylamino groups having 2 to 4 carbon atoms include a dimethylamino group.
- Examples of acylamino groups having 2 to 4 carbon atoms include an acetylamino group.
- halogen atoms include fluorine, chlorine, bromine and iodine.
- sulfonate groups include a lithium sulfonate group, sodium sulfonate group and potassium sulfonate group.
- R 1 , R 2 and R 3 in general formula (I) respectively and independently represent a hydrogen atom, optionally substituted alkyl group having 1 to 4 carbon atoms or halogen atom.
- R 1 , R 2 and R 3 may be the same or different.
- alkyl groups having 1 to 4 carbon atoms represented by R 1 , R 2 and R 3 include linear or branched alkyl groups, such as a methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group or tert-butyl group.
- alkyl groups examples include alkoxy groups (such as a methoxy group, ethoxy group, n-propoxy group, isopropoxy group, n-butoxy group, isobutoxy group or tert-butoxy group), amino groups, monoalkylamino groups (such as a methylamino group), dialkylamino groups (such as a dimethylamino group), formyl group, epoxy groups, acyloxy groups (such as an acetoxy group, n-propanoyloxy group, n-butanoyloxy group, pivaloyloxy group or benzoyloxy group), alkoxycarbonyl groups (such as a methoxycarbonyl group, ethoxycarbonyl group or n-butoxycarbonyl group), and carboxylic anhydride groups (such as a —CO—O—CO—R group, wherein R represents an alkyl group having 1 to 4 carbon atoms).
- alkoxy groups such as a methoxy
- halogen atoms include fluorine, chlorine, bromine and iodine.
- dicarboxylic acid compound (I) is 3,5-pyridinedicarboxylic acid.
- R 1 , R 2 and R 3 respectively and independently represent a hydrogen atom, alkyl group having 1 to 4 carbon atoms or halogen atom.
- X is a carbon atom
- Y is preferably a hydrogen atom, optionally substituted alkyl group having 1 to 4 carbon atoms, alkoxy group having 1 to 4 carbon atoms, nitro group, carboxyl group or sulfonate group.
- the optionally substituted alkyl group having 1 to 4 carbon atoms is preferably a methyl group or tert-butyl group.
- the alkoxy group having 1 to 4 carbon atoms is preferably a methoxy group.
- the dicarboxylic acid compound (I) is preferably a dicarboxylic acid in which R 1 , R 2 and R 3 are hydrogen atoms, X is a carbon atoms, and Y is any of a hydrogen atom, methyl group, tert-butyl group, methoxy group, nitro group, sulfonate group or carboxyl group.
- isophthalic acid, 5-methylisophthalic acid, 5-tert-butylisophthalic acid, 5-methoxyisophthalic acid, 5-nitroisophthalic acid, sodium 5-sulfoisophthalate, lithium 5-sulfoisophthalate, and trimesic acid are preferable, isophthalic acid, 5-methylisophthalic acid and 5-nitroisophthalic acid are more preferable, and from the viewpoint of separation performance, 5-nitroisophthalic acid is most preferable.
- the present invention is characterized by combining two or more types of the dicarboxylic acid compound (I) to compose a metal complex.
- a metal complex composed from only one type of the dicarboxylic acid compound (I).
- Preferable combinations of the dicarboxylic acid compound (I) include 5-nitroisophthalic acid and isophthalic acid, 5-nitroisophthalic acid and 5-methylisophthalic acid, 5-nitroisophthalic acid and sodium 5-sulfoisophthalate, 5-nitroisophthalic acid and lithium 5-sulfoisophthalate, 5-nitroisophthalic acid and 5-tert-butylisophthalic acid, 5-nitroisophthalic acid and 3,5-pyridinedicarboxylic acid, and 5-nitroisophthalic acid and trimesic acid.
- the combinations of 5-nitroisophthalic acid and sodium 5-sulfoisophthalate, 5-nitroisophthalic acid and lithium 5-sulfoisophthalate, and 5-nitroisophthalic acid and 5-tert-butylisophthalic acid are more preferable, and the combination of 5-nitroisophthalic acid and 5-tert-butylisophthalic acid is even more preferable.
- the amount of the dicarboxylic acid compound (I) serving as base is preferably 70 mol % to 95 mol %, and more preferably 80 mol % to 90 mol %, based on the total amount (number of moles) of the dicarboxylic acid compound (I).
- dicarboxylic acid compound (I) serving as base is 5-nitroisophthalic acid
- the preferable ratio of other dicarboxylic acid compounds (I) complies with that indicated above.
- the ratio between 5-nitroisophthalic acid and 5-sulfoisophthalate is such that the ratio of 5-sulfoisophthalate to the total amount (number of moles) of the dicarboxylic acid compound (I) is preferably 5 mol % to 30 mol %. From the viewpoint of adsorption performance, the ratio is more preferably 10 mol % to 20 mol %.
- the ratio between 5-nitroisophthalic acid and 5-tert-butylisophthalic acid is such that the ratio of 5-tert-butylisophthalic acid to the total amount (number of moles) of the dicarboxylic acid compound (I) is preferably 5 mol % to 30 mol %. From the viewpoint of adsorption performance, the ratio is more preferably 10 mol % to 20 mol %.
- the metal ion that composes the metal complex used in the separating material of the present invention is an ion of at least one type of metal selected from the group consisting of beryllium, magnesium, calcium, strontium, barium, titanium, vanadium, chromium, manganese, iron, ruthenium, cobalt, rhodium, nickel, palladium, platinum, copper, zinc and cadmium.
- a cobalt ion, nickel ion and zinc ion are preferable from the viewpoint of complex formation, and a zinc ion is more preferable.
- a salt, hydroxide or oxide of the aforementioned metals can be used as a metal raw material when producing the metal complex of the present invention.
- a single metal raw material is preferably used for the metal raw material, two or more types of metal raw materials may also be used after mixing.
- these metal salts that can be used include organic acid salts, such as acetates or formates, and inorganic acid salts, such as hydrochlorides, hydrobromides, sulfates, nitrates or carbonates.
- hydroxides and oxides are preferable from the viewpoint of the formation of by-products accompanying the reaction, and oxides are more preferable.
- dipyridyl compound (II) used in the present invention is an organic ligand capable of bidentate coordination with a metal ion, and is represented by the following general formula (II): L-Z-L (II)
- R 4 , R 5 , R 6 and R 7 respectively and independently represent a hydrogen atom, alkyl group having 1 to 4 carbon atoms or a halogen atom
- Z represents —CR 8 R 9 —CR 10 R 11 —
- R 3 , R 9 , R 10 and R 11 respectively and independently represent a hydrogen atom, alkyl group having 1 to 4 carbon atoms, hydroxyl group or halogen atom
- R 4 , R 5 , R 6 and R 7 that compose L respectively and independently represent a hydrogen atom, alkyl group having 1 to 4 carbon atoms or halogen atom.
- alkyl groups having 1 to 4 carbon atoms and halogen atoms are as explained with respect to the dicarboxylic acid compound (I).
- R 4 , R 5 , R 6 and R 7 are preferably hydrogen atoms or alkyl groups having 1 to 4 carbon atoms in terms of the amount of gas adsorbed, and R 4 , R 5 , R 6 and R 7 are more preferably all hydrogen atoms.
- Z represents —CR 8 —R 9 CR 10 R 11 — (wherein R 8 , R 9 , R 10 and R 11 respectively and independently represent a hydrogen atom, alkyl group having 1 to 4 carbon atoms, hydroxyl group or halogen atom), an alkylene group having 3 to 4 carbon atoms, —CH ⁇ CH—, —C ⁇ C—, —S—S—, —N ⁇ N—, —O—CH 2 —, —NH—CH 2 — or —NHCO—.
- alkyl groups having 1 to 4 carbon atoms and halogen atoms are as explained with respect to the dicarboxylic acid compound (I).
- alkylene groups having 3 to 4 carbon atoms include a 1,3-propylene group, 1,4-butylene group and 2-methyl-1,3-propylene group.
- Z is preferably —CR 8 R 9 —CR 10 R 11 — (wherein R 8 , R 9 , R 10 and R 11 respectively and independently represent a hydrogen atom, alkyl group having 1 to 4 carbon atoms, hydroxyl group or halogen atom), an alkylene group having 3 to 4 carbon atoms, —CH ⁇ CH—, —S—S— or —NHCO—.
- Z is more preferably —CR 8 R 9 —CR 10 R 11 — (wherein R 8 , R 9 , R 10 and R 11 are all hydrogen atoms), —CR 8 R 9 —CR 10 R 11 — (wherein R 8 and R 10 are hydrogen atoms and R 9 and R 11 are hydroxyl groups), a 1,3-propylene group, —CH ⁇ CH—, —S—S—, —N ⁇ N— or —NHCO—.
- the dipyridyl compound (II) is preferably 1,2-di(4-pyridyl)ethylene, 1,2-di(4-pyridyl)ethane, 1,2-di(4-pyridyl)ethylene glycol, 1,3-di(4-pyridyl)propane, 4,4′-azobispyridine, 4,4′-dipyridyl disulfide or N-(4-pyridyl)isonicotinamide, and more preferably 1,2-di(4-pyridyl)ethylene, 1,2-di(4-pyridyl)ethane, 4,4′-azobispyridine or 4,4′-dipyridyl disulfide.
- the metal complex used in the separating material of the present invention can be produced by reacting two or more types of the dicarboxylic acid compound (I), a salt of at least one type of metal selected from the group consisting of beryllium, magnesium, calcium, strontium, barium, titanium, vanadium, chromium, manganese, iron, ruthenium, cobalt, rhodium, nickel, palladium, platinum, copper, zinc and cadmium, and a dipyridyl compound capable of bidentate coordination with the metal ion for several minutes to several days in a solvent at normal pressure, and precipitating crystals.
- a salt of at least one type of metal selected from the group consisting of beryllium, magnesium, calcium, strontium, barium, titanium, vanadium, chromium, manganese, iron, ruthenium, cobalt, rhodium, nickel, palladium, platinum, copper, zinc and cadmium
- a dipyridyl compound capable of bid
- the metal complex of the present invention can be obtained by mixing and reacting an aqueous solution or water-containing organic solvent solution of the aforementioned metal salt and an organic solvent solution containing two or more types of the dicarboxylic acid compound (I) and the dipyridyl compound (II) at normal pressure.
- One example of the production method is a method that uses a wet grinder. Two or more types of the dicarboxylic acid compound (I), metal salt, the dipyridyl compound (II), solvent and grinding balls are placed in the apparatus followed by carrying out the reaction while carrying out a grinding procedure.
- the raw materials be reacted in the wet grinder and the reaction be completed while grinding the reaction product in the form of the metal complex that precipitates in the form of crystals.
- apparatuses used for wet grinding include pulverizers, such as a ball mill or rod mill, and mixers, such as a kneader.
- the use of a grinder is advantageous from the viewpoint of adsorption rate since a metal complex having a smaller particle diameter can be obtained in comparison with conventional hydrothermal synthesis methods and the like.
- production time can be shortened considerably since synthesis is completed in roughly several minutes to several hours.
- the mixing ratio between the dicarboxylic acid compound (I) and the dipyridyl compound (II) when producing the metal complex is such that the ratio of the dicarboxylic acid compound (I) to the dipyridyl compound (II) is preferably within the range of a molar ratio of 1:5 to 8:1 and more preferably within the range of a molar ratio of 1:3 to 6:1.
- the target metal complex can be obtained even if the reaction is carried out outside these ranges, yield decreases and side reactions increase, thereby making this undesirable.
- the aforementioned ratio of the dicarboxylic acid compound (I) is that based on the total amount of two or more types of the dicarboxylic acid compound (I), and this applies similarly hereinafter.
- the mixing ratio between the metal salt and dipyridyl compound (II) when producing the metal complex is such that the ratio of the metal salt to the dipyridyl compound (II) is preferably within the range of a molar ratio of 3:1 to 1:3 and more preferably within the range of a molar ratio of 2:1 to 1:2. In the case of a ratio outside these ranges, yield of the metal complex decreases and unreacted raw materials remain, thereby making it difficult to purify the resulting metal complex.
- the molar concentration of the dicarboxylic acid compound (I) in a solution for producing the metal complex is preferably 0.005 mol/L to 5.0 mol/L and more preferably 0.01 mol/L to 2.0 mol/L.
- the molar concentration of the metal salt in the solution for producing the metal complex is preferably 0.005 mol/L to 5.0 mol/L and more preferably 0.01 mol/L to 2.0 mol/L.
- the molar concentration of the dipyridyl compound (II) in the solution for producing the metal complex is preferably 0.001 mol/L to 5.0 mol/L and more preferably 0.005 mol/L to 2.0 mol/L.
- An organic solvent, water or a mixed solvent thereof can be used for the solvent used to produce the metal complex.
- solvents that can be used include methanol, ethanol, propanol, diethyl ether, dimethoxyethane, tetrahydrofuran, hexane, cyclohexane, heptane, benzene, toluene, methylene chloride, chloroform, acetone, ethyl acetate, acetonitrile, N,N-dimethylformamide, dimethylsulfoxide, water and mixed solvents thereof.
- a mixed solvent consisting of 1% by weight to 80% by weight of water and an organic solvent is preferable as a mixed solvent.
- An aprotic polar solvent such as tetrahydrofuran, acetone, acetonitrile, N,N-dimethylformamide, N,N-diethylformamide or dimethylsulfoxide is preferable for the organic solvent used in a mixed solvent with water.
- aprotic polar solvent such as tetrahydrofuran, acetone, acetonitrile, N,N-dimethylformamide, N,N-diethylformamide or dimethylsulfoxide is preferable for the organic solvent used in a mixed solvent with water.
- water alone or a mixed solvent of N,N-dimethylformamide and water is particularly preferable.
- the pH may be adjusted to a pH preferable for complex formation by adding an acid or base to the solvent.
- the concentration of water in the mixed solvent is preferably 1% by weight to 80% by weight, more preferably 3% by weight to 60% by weight, and most preferably 5% by weight to 55% by weight from the viewpoint of the particle size of the metal complex formed.
- the reaction temperature is preferably ⁇ 20° C. to 150° C. and more preferably 50° C. to 130° C.
- the reaction time is preferably 1 hour to 24 hours and more preferably 2 hours to 10 hours. In the case of using a wet grinder, the reaction temperature may be 10° C. to 30° C. The reaction time can also be shortened to about 10 minutes to 2 hours.
- Completion of the reaction can be confirmed by quantifying the residual amounts of raw materials by gas chromatography or high-performance liquid chromatography. Following completion of the reaction, the resulting mixed liquid is subjected to vacuum filtration to collect the precipitate followed by washing with an organic solvent and vacuum-drying for several hours at, for example, 60° C. to 100° C. to obtain the metal complex of the present invention.
- a highly crystalline metal complex has high purity and delivers superior adsorption performance.
- the pH may be adjusted to a suitable pH using an acid or base in order to enhance crystallinity.
- the metal complex of the present invention obtained in the manner described above has a three-dimensional structure that is a multiply interpenetrating pseudo-diamondoid framework formed by coordination of the carboxylate ions of two dicarboxylic acid compounds (I) and two dipyridyl compounds (II) per single metal ion.
- the structure of the pseudo-diamondoid framework is shown in FIG. 1
- a schematic diagram of the three-dimensional structure of a triply interpenetrating pseudo-diamondoid framework is shown in FIG. 2 .
- the metal complex preferably has a structure that is a triply interpenetrating pseudo-diamondoid framework.
- the metal complex used in the separating material of the present invention is normally composed such that the ratio of the metal ion, dicarboxylic acid compound (I) and dipyridyl compound (II) is 1 mole:1 mole:1 mole, deviation from the aforementioned ratio is permitted provided the effects of the present invention are obtained.
- a “pseudo-diamondoid framework” is defined as a three-dimensional structure that resembles the structure of a diamond that is formed by coordination of carboxylate ions of two dicarboxylic acid compounds (I) and two dipyridyl compounds (II) per single metal ion.
- a “structure that is a multiply interpenetrating pseudo-diamondoid framework” is defined as a three-dimensional structure in which a plurality of pseudo-diamondoid frameworks is interpenetrating in a form that fills in their mutual pores. Whether or not the metal complex “has a structure that is a multiply interpenetrating pseudo-diamondoid framework” can be confirmed by, for example, crystal X-ray structural analysis or powder X-ray structural analysis.
- the three-dimensional structure of the metal complex of the present invention can be changed even after synthesis. Pore structure and size also change accompanying a change in the three-dimensional structure of the metal complex. This structural change is presumed to depend on such factors as the type of adsorbate, pressure and temperature. Namely, it is believed that the metal complex of the present invention exhibits high selectivity since the degree of structural change varies depending on the adsorbates in addition to a difference in interaction between the pore surfaces and the adsorbate (the intensity of that interaction is proportional to the magnitude of the Lennard-Jones potential of the substance). Since the structure returns to its original structure after an adsorbate has been desorbed, pore structure would also return to its original structure.
- gate-opening pressure can be controlled by modifying the intensity of the interaction among the interpenetrating pseudo-diamondoid frameworks using a dicarboxylic acid compound represented by general formula (I) and a dipyridyl compound represented by general formula (II).
- dicarboxylic acid compound B dicarboxylic acid compound having greater steric hindrance
- dicarboxylic acid compound A dicarboxylic acid compound that composes the complex
- the metal complex serving as the base in the case of using one type of dicarboxylic acid compound
- interaction among pseudo-diamondoid frameworks weakens and the gate-opening pressure of the target adsorbate can be lowered.
- gate-opening pressure for a target adsorbate can be lowered, allowing only the target gas to be selectively adsorbed, by synthesizing using two or more types of dicarboxylic acid compounds having different sizes.
- adsorption rate can be controlled by modifying the ratio of gaps among the interpenetrating pseudo-diamondoid frameworks using a dicarboxylic acid compound represented by general formula (I) and a dipyridyl compound represented by general formula (II).
- adsorption mechanism is only presumptive. Even in the case the adsorption mechanism is not in accordance with that described above, it is encompassed in the scope of the present invention provided it satisfies the requirements provided for in the present invention.
- the mixed gas containing 1,3-butadiene as the separation target is contacted with the separating material of the present invention and the 1,3-butadiene is selectively adsorbed onto the separating material, after which the 1,3-butadiene adsorbed to the separating material is desorbed from the separating material and the released 1,3-butadiene is captured.
- the separating material is regenerated by desorption of the 1,3-butadiene.
- the separating material of the present invention is particularly effective when separating 1,3-butadiene from a mixed gas containing as another gas a hydrocarbon having four carbon atoms, such as butenes including isobutene, 1-butene, trans-2-butene and cis-2-butene, or butanes including n-butane and isobutane, since it is difficult for conventional separating materials to separate these hydrocarbons from 1,3-butadiene due to the proximity of their boiling points to that of 1,3-butadiene.
- Temperature and pressure conditions during contact between the mixed gas and separating material are preferably selected so that only the target 1,3-butadiene is effectively adsorbed onto the separating material.
- the separation method comprises an adsorption step for contacting a mixed gas with the separating material of the present invention under conditions in which 1,3-butadiene is adsorbed onto the separating material.
- Conditions including adsorption pressure and adsorption temperature that enable the 1,3-butadiene to be adsorbed onto the separating material can be suitably determined depending on such factors as the apparatus design or required purity of the product gas.
- the partial pressure of 1,3-butadiene in a mixed gas introduced into the adsorption step is preferably 10 kPa to 200 kPa and more preferably 30 kPa to 200 kPa.
- the adsorption temperature is preferably ⁇ 5° C. to 100° C. and more preferably 0° C. to 50° C.
- the separation method can be pressure swing adsorption or temperature swing adsorption.
- the separation method comprises a step for contacting a mixed gas containing 1,3-butadiene with the separating material and making only the target 1,3-butadiene to be selectively adsorbed onto the separating material (adsorption step), followed by a step for reducing the pressure to a pressure that allows the 1,3-butadiene adsorbed to the separating material to be desorbed from the separating material (regeneration step).
- the desorption pressure can be suitably determined depending on such factors as the apparatus design or production efficiency.
- the desorption pressure is preferably 0.05 kPa to 30 kPa and more preferably 0.05 kPa to 10 kPa.
- the separating material of the present invention is packed into adsorption column AC 1 and adsorption column AC 2 .
- a mixed gas (M) containing 1,3-butadiene, butene, butane and the like is pressurized to about 0.3 MPa with a compressor and supplied from mixed gas storage tank MS to adsorption column AC 1 packed with the separating material through valve V 1 (to be abbreviated as “V 1 ” and to apply similarly hereinafter).
- V 1 valve
- adsorption column AC 1 is aerated by vacuum pump P 1 with V 1 , V 5 , V 6 and V 7 closed and V 2 open.
- BD gas
- product storage tank PS 1 desorption step
- V 1 , V 2 , V 3 , V 4 , V 7 and V 8 are closed and V 5 and V 6 are opened and a residual mixed gas in adsorption column AC 2 is recovered into adsorption column AC 1 by utilizing the pressure difference between adsorption column AC 1 and adsorption column AC 2 (pressure equalization step).
- pressure equalization step Each product gas can be efficiently obtained without losing its purity by carrying out this pressure equalization step.
- adsorption column AC 2 is aerated by vacuum pump P 1 with V 2 , V 3 , V 5 , V 6 and V 8 closed and V 4 open, and a gas (BD) consisting mainly of 1,3-butadiene adsorbed at this time is desorbed and sent to product storage tank PS 1 .
- a mixed gas (M) containing 1,3-butadiene is supplied to adsorption column AC 1 with V 2 , V 3 , V 5 , V 6 and V 8 closed and V 1 and V 7 open after which the adsorption step is carried out again.
- the adsorption and desorption operations in adsorption columns AC 1 and AC 2 are alternately repeated in a cycle suitably set with a timer and the like, resulting in continuous production of each product gas.
- the separation method comprises a step for contacting a mixed gas containing 1,3-butadiene with the separating material and making only the target 1,3-butadiene to be selectively adsorbed onto the separating material (adsorption step), followed by a step for raising the temperature to a temperature that allows the 1,3-butadiene adsorbed to the separating material to be desorbed from the separating material (regeneration step).
- the desorption temperature can be suitably determined depending on such factors as the apparatus design or production efficiency.
- the desorption temperature is preferably ⁇ 5° C. to 150° C. and more preferably 20° C. to 100° C.
- the pressure is dependent on the range over which the temperature is allowed to swing, and a pressure from 0.1 MPa to the pressure at which the raw material gas liquefies is preferable.
- the separation method is pressure swing adsorption or temperature swing adsorption
- the step for contacting the mixed gas with the separating material (adsorption step) and the step for changing the pressure or temperature to one at which 1,3-butadiene can be desorbed from the separating material (regeneration step) can be suitably repeated.
- a separation membrane can be obtained by disposing the metal complex on the surface of a porous support by crystal growth, for example.
- materials of the porous support preferably include alumina, silica, mullite, compositions composed of silica, alumina and other components, such as cordierite, porous sintered metals and porous glass.
- ceramics including other oxides, such as zirconia or magnesia, carbides or nitrides, such as silicon carbide or silicon nitride, gypsum, cement or mixtures thereof can also be used.
- the porosity of the porous support is typically about 30% to 80%, preferably 35% to 70% and most preferably 40% to 60%.
- the pore size of the porous support is typically 10 nm to 10,000 nm and preferably 100 nm to 10,000 nm.
- a separation membrane having grown crystals of a metal complex on the surface of a porous support is obtained by immersing the porous support in a solution containing raw materials of the metal complex followed by heating as necessary.
- a separation membrane can also be obtained by kneading the metal complex of the present invention with a polymeric material to disperse the metal complex in the polymeric material followed by forming into a film.
- polymeric materials include polymeric materials used for gas separation membranes, such as polyvinyl acetate, polyimide or polydimethylsiloxane.
- the permeability P of each gas in the mixed gas is expressed as the product of the solubility S of each gas in the membrane and the diffusion coefficient D of each gas in the membrane.
- the higher the permeability P of a gas the greater the selectivity at which the gas passes through the membrane. Therefore, such a gas can be separated and recovered from a mixed gas. Accordingly, by forming the metal complex of the present invention, which is highly selective for 1,3-butadiene, into a membrane, the obtained membrane allows 1,3-butadiene to selectively pass through.
- 1,3-butadiene when a mixed gas is passed through an inner tube of a double-walled tube provided with a gas-impermeable outer tube and the inner tube composed of a separation membrane, 1,3-butadiene selectively passes through the inner tube and is concentrated between the outer tube and the inner tube. Therefore, the target 1,3-butadiene can be separated.
- a mixed gas may at least contain butenes, such as isobutene, 1-butene, trans-2-butene or cis-2-butene, and butanes, such as n-butane or isobutane as well as other hydrocarbons.
- the mixed gas preferably contains 10% by volume to 99% by volume of 1,3-butadiene based on the total volumetric ratio of 1,3-butadiene and other hydrocarbons (of which there may be multiple types) present in the mixed gas.
- the ratio of 1,3-butadiene is more preferably 20% by volume to 60% by volume.
- the separating material of the present invention can be applied to separation of fractions having four hydrocarbons (C4 fractions) obtained by naphtha cracking.
- C4 fractions hydrocarbons obtained by naphtha cracking.
- the mixed gas is passed through an adsorption column packed with the separating material of the present invention for 1 minute to 10 minutes.
- the pressure is reduced to 20 kPa or lower with a vacuum pump, enabling the 1,3-butadiene adsorbed to the separating material to be recovered.
- Measurements were carried out by the volumetric method using a high-pressure gas adsorption apparatus.
- the samples were dried at 150° C. and 50 Pa for 6 hours prior to measurement to remove any adsorbed water and the like. Details of the analysis conditions are indicated below.
- X-ray diffraction patterns were measured according to a symmetrical reflection method at a scanning rate of 3°/minute over a diffraction angle range (2 ⁇ ) of 3° to 50° using the MultiFlex X-ray diffraction system manufactured by Rigaku Corp. Mercury (ver. 2.3) available from the Cambridge Crystallographic Data Centre was used to convert single crystal structures to XRPD diffraction patterns.
- Zinc oxide (0.41 g, 5.0 mmol, 1 eq.), 5-nitroisophthalic acid (1.00 g, 4.8 mmol, 0.95 eq.), 5-tert-butylisophthalic acid (0.06 g, 0.3 mmol, 0.05 eq.), 1,2-di(4-pyridyl)ethylene (0.92 g, 0.50 mmol, 1.0 eq.), distilled water (5 mL) and zirconia balls (diameter: 3 mm, 25 g) were added to a zirconia container (45 mL) followed by wet-grinding for 1 hour at room temperature (25° C.) and 400 rpm (using the Classic Line P-7 manufactured by Fritsch Japan Co., Ltd.).
- Metal Complex 1 a metal complex having a structure that is a triply interpenetrating pseudo-diamondoid framework as shown in FIGS. 1 and 2 by measurement of the powder X-ray diffraction pattern thereof. This was designated as “Metal Complex 1”.
- Metal Complexes 2 to 9 and Comparative Metal Complex 1 were produced in the same manner as Example 1 with the exception of changing the reaction raw materials to the substances and amounts shown in Table 1. Comparative Metal Complex 1 used only one type of the dicarboxylic acid compound (I).
- a typical zeolite adsorbent, Zeolite 13X (Union Showa K.K.), was used.
- the adsorption isotherms of 1,3-butadiene were measured at 25° C. for the metal complexes of Examples 1 to 5 and Comparative Example 1. The results are shown in FIGS. 4 and 5 .
- FIG. 7 indicates that Metal Complex 2 of the present invention selectively adsorbed 1,3-butadiene over a pressure range of 40 kPa to 100 kPa.
- a mixed gas composed of 1,3-butadiene and trans-2-butene is contacted with Metal Complex 2 and the mixed gas is supplied at a partial pressure of 1,3-butadiene of 40 kPa or higher, only the 1,3-butadiene is selectively adsorbed.
- 1,3-butadiene desorbs when the supply of mixed gas is halted and the pressure is lowered to 20 kPa or lower, a concentrated gas of 1,3-butadiene can be obtained.
- FIG. 7 indicates that Metal Complex 2 of the present invention selectively adsorbed 1,3-butadiene over a pressure range of 40 kPa to 100 kPa.
- 1,3-butadiene was not selectively adsorbed over a pressure range of 0 kPa to 110 kPa. Namely, not only 1,3-butadiene, but also trans-2-butene also ends up being adsorbed and 1,3-butadiene cannot be sufficiently concentrated.
- PS 1 , PS 2 Product storage tanks
- V 1 to V 8 Valves
- BD Gas consisting mainly of 1,3-butadiene
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Abstract
Description
L-Z-L (II)
L-Z-L (II)
TABLE 1 | |||||||||
Dicarboxylic | Dicarboxylic | ||||||||
Metal | Metal Raw | Acid | Acid | Dipytidyl | |||||
Complex | Material | Compound A | Compound (B) | Compound | B/(A + B) | Yield | Yield | ||
No. | (g) | (g) | (g) | (g) | (mol %) | (g) | (%) | ||
Example 1 | 1 | ZnO | 0.41 | 5-NIP | 1.00 | 5-BIP | 0.06 | DP-ethylene | 0.92 | 5 | 2.03 | 90 |
Example 2 | 2 | ZnO | 0.41 | 5-NIP | 0.95 | 5-BIP | 0.12 | DP-ethylene | 0.91 | 10 | 1.98 | 87 |
Example 3 | 3 | ZnO | 0.41 | 5-NIP | 0.84 | 5-BIP | 0.23 | DP-ethylene | 0.92 | 20 | 1.96 | 83 |
Example 4 | 4 | ZnO | 0.41 | 5-NIP | 0.96 | 5-SSIP | 0.14 | DP-ethylene | 0.91 | 10 | 1.85 | 81 |
Example 5 | 5 | ZnO | 0.40 | 5-NIP | 0.96 | 5-LSIP | 0.13 | DP-ethylene | 0.91 | 10 | 1.89 | 83 |
Example 6 | 6 | ZnO | 0.41 | 5-NIP | 0.95 | IP | 0.08 | DP-ethylene | 0.91 | 10 | 1.98 | 87 |
Example 7 | 7 | ZnO | 0.41 | 5-NIP | 0.95 | 5-MIP | 0.09 | DP-ethylene | 0.91 | 10 | 1.97 | 87 |
Example 8 | 6 | ZnO | 0.40 | 5-NIP | 0.95 | PDC | 0.09 | DP-ethylene | 0.91 | 10 | 1.98 | 88 |
Example 9 | 9 | ZnO | 0.41 | 5-NIP | 0.95 | BTC | 0.10 | DP-ethylene | 0.91 | 10 | 1.16 | 51 |
Comp. Ex. 1 | Comp. 1 | ZnO | 0.41 | 5-NIP | 1.04 | None | — | DP-ethylene | 0.91 | 0 | 1.88 | 82 |
5-NIP: 5-nitroisophthalic acid | ||||||||||||
5-BIP: 5-tert-butylisophthalic acid | ||||||||||||
5-SSIP: Sodium 5-sulfoisophthalate | ||||||||||||
5-LSIP: Lithium 5-sulfoisophthalate | ||||||||||||
IP: Isophthalic acid | ||||||||||||
5-MIP: 5-methylisophthalic acid | ||||||||||||
PDC: 3,5-pyridinedicarboxylic acid | ||||||||||||
BTC: Trimesic acid | ||||||||||||
DP-ethylene: 1,2-di(4-pyridyl)ethylene |
Claims (15)
L-Z-L (II)
L-Z-L (II)
L-Z-L (II)
L-Z-L (II)
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JP6638685B2 (en) * | 2017-03-31 | 2020-01-29 | トヨタ自動車株式会社 | Metal organic structure and manufacturing method thereof |
CN109420480B (en) * | 2017-08-22 | 2020-06-09 | 浙江大学 | Method for separating carbon tetraolefin mixture |
US11905242B2 (en) * | 2018-09-05 | 2024-02-20 | Zeon Corporation | Method of producing piperylene |
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